Shu Jing Yen (PhD, Measurement, Applied Statistics and Evaluation, University of Maryland) is a Senior Research Associate at the Center for Applied Linguistics. She directs the Psychometric and Quantitative Research Team and also serves as Senior Psychometrician for ACCESS for ELLs®.
Prior to joining CAL in 2010, Dr. Yen was a Research Scientist at the Institute of Education Sciences overseeing large-scale federally funded research grants in developing innovative educational assessments and accountability models. Prior to that, she was a Psychometrician at CTB/McGraw-Hill and at the Maryland State Department of Education, where she gained considerable experience in all aspects of designing, developing, and analyzing large-scale high stakes K-12 assessments. She also has extensive experience in language testing, which includes having directed psychometric analyses for an adult English language assessment used for federal accountability reporting.
Other major assessment projects she was involved with include the development of an adult basic skills assessment, used nationally for federal accountability reporting and the development of a system to assess the English language development of English language learners in K-12 in speaking, listening, reading and writing. She has also worked on technologically-mediated speaking tests in Chinese.
Active in research on psychometrics, Dr. Yen is particularly interested in the psychometric issues related to creating and maintaining vertical scales, dimensionality, differential item functioning, and rater effect.